Getty The Arizona Diamondbacks didn’t just land Nolan Arenado in a vacuum. They beat a division rival to do it—and in the process revealed how differently they viewed both risk and opportunity compared to the San Diego Padres . According to The Athletic’s Ken Rosenthal , the Padres were the other serious suitor in the Arenado trade talks with the St. Louis Cardinals . San Diego envisioned Arenado shifting to first base with Manny Machado entrenched at third, a creative solution on paper that